Voice Quality And Infrastructure - Siemens GIGASET A580 User Manual

Web configurator – setting the phone using a PC
If the phone always starts by trying to establish a broadband connection, put
the
G.722
Please note
u
You should only deactivate codecs (put them in the
there is a particular reason. The more codecs that are deactivated, the
greater the danger that calls will not be able to be established due to unsuc-
cessful codec negotiations. In particular you can only establish broadband
connections if you permit the
u
With incoming calls, all supported voice codecs are always permitted.
Area: Settings for Codecs
To save additional bandwidth and transmission capacity, on VoIP connections
that use the
pauses ("Silence Suppression"). Then, instead of the background noises in your
environment, your caller hears a synthetic noise generated in the receiver.
Please note: "Silence Suppression" can sometimes lead to deterioration in the
voice quality.
¤
In the
data packets during pauses should be suppressed when using the
codec, (select Yes).
Saving settings on the phone
¤
Select
Please note
You should observe the following for good voice quality:
u
When making calls using VoIP, avoid performing other Internet activities
(e.g. surfing the Internet).
u
Please note that voice delays can occur depending on the codec used and
the network capacity utilisation.

Voice quality and infrastructure

With your Gigaset A580 IP, you have the opportunity to make calls with good
voice quality via VoIP.
However, your phone's performance with VoIP – and therefore the voice quality
– also depends on the properties of the entire infrastructure.
The following components from your VoIP provider may impact performance :
u
Router
u
DSLAM
u
DSL transmission line and speed
u
Connection paths over the Internet
u
If applicable, other applications that also use the DSL connection
124
codec at the top of the
codec you can suppress the transmission of voice packets in
G.729
Enable Annex B for codec G.729
Set to save the settings for the voice quality.
list.
Selected codecs
G.722 codec.
field, state whether the transmission of
Available codecs list) if
G.729